Grimmspeed - Subaru 15-21 STI - Stage 1 Power Package

The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together as a complete system. Instead of piecing together parts from many different manufacturers and hoping that their design theories are compatible, consider starting with one of our excellent Staged Power Packages based on your goals!

The GrimmSpeed Stage 1 Power Package is an excellent place to start when modifying your 2015+ Subaru STI. The upgraded GrimmSpeed 3-Port Boost Control Solenoid offers more accurate and responsive boost control and is a must when professionally tuned your vehicle. The GrimmSpeed Intake increases performance by reducing pre-turbo restriction, allowing your turbo to build more quickly and efficiently. 

It's important to note that all GrimmSpeed Staged Power Packages require a proper tune.

Stage 1 Package Components

• GrimmSpeed 3-Port Electronic Boost Control Solenoid
  
• GrimmSpeed Cold Air Intake System
• GrimmSpeed License Plate Frames

Stage 1 Package Features

• Decrease Spool Time - Lower intake restriction and better boost control
• Plug and Play into OEM Harness - No splicing wires like other BCS solutions
• Minimize Intake Restriction - Combining the advantages and eliminating the negatives of both traditional intake designs
• MAF sensor location - Inside heat shield, isolated from engine bay heat
• Custom reusable high flow air filter - Integrated velocity stack entrance smooths incoming air
• Made in the USA - Right here in Minnesota, in fact
• 60min Installation - Extremely simple with our written and video guides

Performance

With the GrimmSpeed Stage 1 Power Package and a tune, expect to see a decrease in time to spool, rock solid boost control, and an increase in torque and horsepower, The Electronic Boost Control Solenoid keeps boost in the system instead of bleeding it away like the factory configuration. This, coupled with its extremely fast and precise response, makes for an invaluable tool for tuning your boost curve. The Cold Air Intake decreases restriction before the turbo’s compressor. This decrease in restriction increases compressor efficiency, which builds boost pressure faster and higher.

Fitments

• 15-21 Subaru STI